Locking device.



No. 824,?96. PATEKTB GLY 3, 1906.

Y ELA. IAMONT. Y Y

LOGKNFG DEVICE. Hummm FILED msn s, 1m.

2 SHEETS-SHEET 1.

PTENTED JULY 3, N96,

2 SHEETS-SHEET 2;

V u n u k Q ,IIL fnlr i i i i i... I HLkTrrlil f. llilixlrlul 9\ 1 l X IE\ Flf1l :llt 1l...

UNITED STATES PATENT Oniiion.

JOHN ALEXANDER LAMYONT, OF MONTREAL, CANADA. LooKmo Device.r

Speceetion of Letters Patent.

IPatented J uly 3, 1906.

Application liled Juas 9, 19057. Burial 11u. 284,494.

' ofthe same.

My invention relates particularly to the means for iockin an ad1ustable brake-head in diil'rent angu ar vpositions upon a brakebeam, although'it can .be applied to advan- Y tage to means 'for locking other adjustable'Y ""sideof the chamber o is eircumferentially parte together` The invention ma be said briefly to coniY sist of a lookin 4mem er carried by one oftheV parts to be loc ed toether, a second ioclging' member carried by t e other of such parte, 1&7 device carried permanently parts; and a movable device carried Vhy the other part andcoaetinV with the first-men;

tioned device to lock t e parts in any YVpre-1 determined position relatively to 'oe fan-Q other.

For full comprehension invention reference must h companying drawinfrs, forming a part ofthisn specification, in whic simiar reference charir actors indicate the same parts, and wherein-'- Fleurs 1s a side elevation of anfadjustable |n'alre-head with my invention Vapplied.

thereto. Fig. 2 is a longitudinal sectionall view thereof taken at right an lesto the axis of the head. 3 is a side elevational the part carried by t 'e bra e-beam, and Fig. 4 is a similar view to Fig. @taken at right angles thereto. Y i

In order to enablerny'invention to he Aclearly understood, Iyhavellstrated the same applied to the ad'ustable connection of a brake-head to a bra B -beam athough can be 8713950@ With advantage to adfusi-,ablyV connect other-parts together Within t e spirit of my invention.

The partlcarried by the brake-bearn b oon-Y siste of `a sleeve c, castijvith a circumferential flange d at 'one end and its o posits end exteriorly diminished,' as ate, v'vv Vle the interior thereof is of reotanvular cross section to fit upon the end f ofthe 'brake-beam. Tlzi'eV ,body of this. sleeveiskcored out to present a we. g,

in a radial plane aboiltmidway thereof, and an axllr'eoess h in its perimeter, with a pin-hole i'. intending therefrom into intersection with. the h le g. The brakeby one of 'such extending eccentrically therethrough.Y

of the lengt;

beam is formed with a half-round recess j in one side, which is ada ted to come into juxtaposition with the ho e g. when the sleeve is litted u on the beam'.

' -The rake-head is in the main of usual construction. It is cast with a oyiindrical portion l: and a pair of webs mi, between which and at right angles thereto a second pair of Webs fn extend, thus forming a cham- Yfurther alluded to. Each of the webs n is perforated; as at p, and the of the cylindrical portion contiguous to one sotted, as at if', from such chamber and about 'ortyive per cent. in length, while adjacent to the end of this circumferential slot is an axial slot s, and a keyl upon the interior of the brakehead isadapted to enter a eiroumferentiai recess 'a in the perimeter of the sleeve through anffexial recess 'v leadin thereto for the pur- Y pose'of preventing acci entai axiai displacenientY ofthe head.

tions relatively to the sleeve by means of a Yhook and the not 5, before mentioned, the Vhook having a straight ortion 2 and a portion 3 curved with a slightly eater radins than the cylindrical portion of t e brake-head and formed with a screw-thread 4, mutilated or out away along the radial inner side thereof. The nut 5 Vis Vof usual standard make, and,V as before mentioner Vis accom- Inodated in thslehember 0., and the straight a pin-hole 9 therein. he parts aboveA described the'sleeve'rexs Vst slipped upon the end lof the 'brake-beam and the recess oansed to jreisterwith the hole The Vrelive-beati, Yhe with the key t in lme'with the recess o. isfthen pushed onto the sleeve,Y which will cause the slot s to coincide with the recess h. VThe straight portion V2 of the hook is then inserted into the coinciding hole g and recess y' until the curved portion of the hook assumes apositionconcentticto theeylindrical portion o the'ineke-hemdr which will-positionit in circumferential line with the per- 'oratons p in the walls of the nutohamber o. Aziit cutter-pin 10 is then imerted into the e le of@- seoond split netter-pin 12, iv irhich isY gen inserted through the axial siot s foto the recess h, pin-hole e, andthe pin-hole 9, the

cutter-pin 10 acoompan it as far as the recess in lwhich it is embedded. The nut nThe sleeve is locked upon the brake-beam and the brake-head in different angular posier o to aocinnlnodateV a nut 5, hereinafterV portion of the wall v IOO is then held in its chamber o, and the brakelicad is swung around the sleeve until the end of the screw-threaded portion of the hook enters the chamber suliciently to enable the nut to be screwed thereon. Upon the nut being turned one way or the other the curved hook will be caused to travel therethrough iii one direction or the other and the brake-head be adjusted to any desired angular position.

A nut-lock such as indicated at 20 or of any preferred type is utilized to prevent accidental rotary displacement of the nut upon the hook.

What I claim is as follows:

1. The combination with a brake-beam, of a brake-head, a pair of concentric circular parts rotatable one within the other, one of such parts being carried by the beam. and the other by the head, a device for adjusting and locking such parts consisting of a member carrie by one of the parts concentric to the other part, a movable member carried by the other part and coacting with the first-mentioned member and adapted to move one of the parts and lbck the-said parts in any predetermined angular position relatively to one another.

2. The combination with a pair of concentric circular parts rotatable one Within the other, of a device for adjusting and locking such parts consisting of a hook carried rigidly by one of the parts and presenting a curved portion concentric to the other part, a movable member carried by the other' part and coacting with the curved portion of the hook and moving the parts first mentioned and locking the same in any predetermined angular position relatively to the other part.

3. The combination with a pair of concentric circularparts rotatable vone within the other, of a device for ad'iisting and locking such parts consisting of; a ook carried rigidly by one of the arts and presenting a curved screw-threaded) portion concentric to the other art, a nut located adjacent to and retaine against movement by the other part and engaging the curved portion of the hook and moving the parts first mentioned and locking the same in any predetermined angular position relatively to the other part.

4. The combination with a brake-beam having a sleeve mounted thereon, such sleeve having an eccentric hole and the beam having a recess concentric to the said hole, a-hook presenting a straight portion and a screwthreaded curved ortion, the straight ortion being located in the hole and coinci ing recess and the curved portion extending concentric to the sleeve, a brake-head having threa ed therethrou' a cylindrical portion fitting rotatably upon the sleeve with the curved portion of the hook projecting through a slot therein and presenting a chamber with openings in circumferential line with Yand 4accommodating the curved portion of the hook, a nut in the chamber and having the curved portion of the hook threaded tlierethrou h, and means retaining thehook against disp acement relatively to the sleeve.

5. The combination with a brake-beam having a sleeve mounted thereon, such sleeve having an eccentric hole and the beam having a recess concentricto fthe said hole, a hook presenting a straight portion and a screw-threaded curved portion, the strai ht portion having a transverse pin-hole and eing located in the hole and coinciding recess and the curved portion extending concentric to the sleeve, a brake-head having a c lindrical ortionfittiiigrotatabl upon thes eeve with t ie curved portion of t e hook projecting through a slot therein and presenting a chamber with openings in circumferential line with and accommodating the curved ortion ofthe hook, a nut in the chamber and havin the curved ortiony of the hook and the cylindrical portion of the head aving a slot adjacent to the first-mentioned slot and the sleeve havin arecess in its perimeter corresponding to an adapted to coincide with the last-mentioned slot when the hook is out of o erative engagement with the nut and suc sleeve also having a radial pin-hole communicating at its outer end with the recess and registering at its op osite end with the pin-hole in the hook, an a pair of engaging Cotter-pins located in the recess and registering in-holes for retaining the hook against disp acement relatively to the sleeve.

6. The combination with4 a pair of circular. parts concentric to one another and one movable relatively to the other, of a member carried. rigidly by one of the parts and pre- `senting a screw-threaded ortion concentric thereto such screw-threa being cutaway upon the radial inner side ofthe member, a nut having screwed thereinto the said portion of the member with the mutilated screwthread, and means retainin the nut against movement in the line of su'i curved portion of the member.

In testimony whereof I have signed my naine to this specification in the presence of two subscribing witnesses.

` JOHN ALEXANDER LAMONT.

Witnesses:

WILLIAM MoFEA'r, FRED. J. SEARS.

IOC 

